SOLUTION: Find all exact solutions of: tanxsinx - sinx = 0
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Question 166649
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Find all exact solutions of: tanxsinx - sinx = 0
Answer by
jim_thompson5910(35256)
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tan(x)sin(x)-sin(x)=0 ... Start with the given equation
sin(x)(tan(x)-1)=0 ... Factor out the GCF sin(x)
sin(x)=0 or tan(x)-1=0 ... Set each factor equal to zero
Solve the first equation:
sin(x)=0 ---> x = 0 + 2pi*n ... or ... x = pi + 2pi*n
Solve the second equation:
tan(x)-1=0=0 ---> tan(x)=1 ----> x = pi/4 + pi*n
So the solutions are
x = 0 + 2pi*n ... or ... x = pi + 2pi*n ... or ... x = pi/4 + pi*n
where "n" is an integer.